License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Peter Candid (Pieter de Witte, Pietro Candido). Two studies of a Standing Man with a Sword (Alexander the Great); verso: Studies of a Leg, an Arm, a Hand, and a Figure's Neck, ca. 1601. The Metropolitan Museum of Art.